Halbower, 66, was transferred to San Mateo County from Oregon State Prison, where he was serving an unrelated attempted-murder sentence. He was charged Thursday with two counts of murder and special circumstance of murder during the course of a rape in the 1976 deaths of 17-year-old Paula Baxter, whose body was found in Millbrae, and Veronica Anne Cascio, 18, who was found dead in her native Pacifica.